In October, the global bunker market was characterized by rising prices and volatility, largely attributed to geopolitical tensions and significant supply-side constraints. The ongoing military conflict between the United States and Iran has contributed to increased geopolitical risk premiums, influencing freight costs and bunker pricing.
Key Market Drivers
Several factors underpin the current dynamics of the bunker market. The instability in the Middle East, particularly around the Strait of Hormuz, has intensified risk premiums associated with crude oil and refined petroleum products. As a result, bunker quotations have seen upward pressure throughout October.
Crude oil supply constraints, stemming from disrupted Gulf exports and limited supply flexibility, have further exacerbated the situation. The combination of higher transportation costs and tight distillate supply—characterized by restricted gasoil availability—has led to elevated prices for marine gas oil (MGO), widening the premiums over residual bunker fuels.
Regional fuel imbalances, particularly in Asian bunkering hubs, have emerged due to limited availability of high-sulfur fuel oil (HSFO) and very low sulfur fuel oil (VLSFO). This has resulted in significant regional price differentials, influencing operators’ fuel purchasing strategies.

Price Movements
According to MABUX, the 380 HSFO Index recorded an increase of USD 76.75, culminating at USD 778.42/MT by the end of October. Similarly, the VLSFO Index rose by USD 70.81, breaking above the USD 900/MT threshold and reaching USD 913.07/MT. Meanwhile, the MGO LS Index saw a marginal rise of USD 2.62, closing the month at USD 1,524.50/MT.
The MABUX Global Scrubber Spread (SS), representing the differential between 380 HSFO and VLSFO prices, exhibited a slight downward trend, decreasing from USD 140.59 to USD 134.65. This narrowing spread highlights the market’s gradual adjustment to the evolving geopolitical landscape. In Rotterdam and Singapore, variations in the SS spread reflected local market conditions, with the latter briefly dropping below the USD 100.00 benchmark.
Future Outlook
Current market conditions indicate that the bunker market remains highly volatile, with geopolitical tensions acting as a significant influencing factor. As operators navigate through fluctuating prices and supply constraints, many are exploring alternative sources of fuel to mitigate dependence on traditional marine fuels. However, the high costs associated with alternative fuels continue to limit broader adoption.
The persistent climbing of bunker prices amidst ongoing geopolitical instability suggests that operators may need to adapt their logistical strategies in anticipation of sustained volatility in the marine fuel market. Increased freight costs are likely to remain a concern for shipping operators, influencing charter agreements and operational margins across the sector.
Behind the Headline
The upward trajectory of bunker prices reflects deeper operational realities affecting maritime logistics. Operators must contend with the ramifications of limited fuel availability and the elevated freight costs that arise from geopolitical tensions. The ongoing shifts in scrubber spreads highlight how market participants are adjusting their strategies in response to fluctuating fuel prices. As the industry transitions towards alternative fuels, it will be crucial to monitor how these developments influence overall fuel demand, operational costs, and environmental strategies. Future sustainability efforts may hinge on addressing the challenges associated with high alternative fuel prices while navigating an increasingly complex geopolitical landscape.


